As with all its product, Apple manufacturers a number of prototypes for testing before putting in the final order for a production version. This is why we keep hearing details about the iPhone 6, as the prototypes keep leaking. Now the same is starting to happen for the long-rumored Apple iTV.

According to IBK Securities analyst Lee Seung-woo, Apple is working with 65-inch OLED panels as a base prototype for its forthcoming TV. We’ve been hearing about a possible Apple iTV for years now, but for one reason or another it has yet to be released. That’s probably down to Apple just not managing to perfect the format yet, or waiting for the technology it wants (OLED) to become viable in very large formats.

The Korean manufacturer of these OLED panels has not been named, but it is thought Apple has delayed any release of iTV until 2015. That must be due, at least in part, to managing to produce enough OLED iTVs at that size to meet the obvious demand for such a product.

It seems unlikely Apple would release just one iTV SKU, and not everyone has room to fit a 65-inch TV on their wall. So I’d expect that to be the largest iTV, with 40-inch and 50-inch models also being made available. All models will undoubtedly carry the typical Apple price premium over Smart TVs already on the market today.

Large OLED TVs are not mass produced yet, and it seems likely if Apple did perfect iTV using OLED, the company would eat up all OLED production capacity for the foreseeable future. But at the same time it would certainly trigger more production and other manufacturers to open OLED-producing factories.